package net.hust.service;

import java.util.List;

import net.hust.bean.User;

public interface UserService {
	public void save(User user);
	public void update(User user);
	public User find(Integer userId);
	public String findPwByNm(String username);
	public void delete(String... usernames);
	public List<User> list();
	public void delete(int userId);
}
